Search Results - "Biggar, J.W"

Thermodynamics of Organic Chemical Partition in Soils. 2. Nonlinear Partition of Substituted Phenylureas from Aqueous Solution by Spurlock, Frank C, Biggar, James W

“…A study examined the sorption behavior of five substituted phenylureas of varying hydrophobicity over wide ranges in equilibrium solution concentration. The…”
Get full text

Growth and yield responses of almond (Prunus amygdalus) to trickle irrigation by Hutmacher, R.B., Nightingale, H.I., Rolston, D.E., Biggar, J.W., Dale, F., Vail, S.S., Peters, D.

“…Growth and yield responses of developing almond trees (Prunus amygdalus, Ruby cultivar) to a range of trickle irrigation amounts were determined in 1985…”
Get full text

Temporal persistence of spatial soil-water patterns under trickle irrigation by Rolston, D.E. (University of California, Davis (USA). Land, Air and Water Resources), Biggar, J.W, Nightingale, H.I

Get full text

Role of redox potential in chemical transformations of selenium in soils by Jayaweera, G.R. (Univ. of California, Davis, CA.), Biggar, J.W

“…Irrigated agricultural areas with high levels of soil Se face the dilemma of elevated Se levels in drainage and groundwater systems, which will adversely…”
Get full text

Thermodynamics of Organic Chemical Partition in Soils. 1. Development of a General Partition Model and Application to Linear Isotherms by Spurlock, Frank C, Biggar, James W

“…A study evaluated sorbed-phase partial molar free energies for organic carbon-based soil sorption in terms of the Flory-Huggins theory. The conventional…”
Get full text

Statistical parameters characterizing the spatial variability of selected soil hydraulic properties by Unlu, K. (Virginia Polytechnic Inst. and State Univ., Blacksburg, VA), Nielsen, D.R, Biggar, J.W, Morkoc, F

“…The knowledge of the statistical parameters of the variance, sigma 2, and the correlation scale, lambda, characterizing the spatial structures of the log of…”
Get full text

Thermodynamics of Organic Chemical Partition in Soils. 3. Nonlinear Partition from Water-Miscible Cosolvent Solutions by Spurlock, Frank C, Biggar, James W

“…A study examined the solubility and partitioning behavior of four substituted phenylureas in various aqueous methanol (MeOH) and aqueous dimethyl sulfoxide…”
Get full text

Spatial variability of field-measured infiltration rate [Soil properties, soil classification] by Vieira, S. R., Nielsen, D. R., Biggar, J. W.

“…Spatial variability of 1,280 field‐measured infiltration rates on Yolo loam (fine‐silty, mixed, nonacid, thermic Typic Xerorthents) was studied using…”
Get full text

Temporal persistance of spatial soil-water patterns under trickle irrigation by Rolston, D.E, Biggar, J.W, Nightingale, H.I

“…Trickle irrigation of perennial crops results in local wetting near trees and vines. Methods to measure soil-water content or storage within the root zone…”
Get full text

Determining root activity distribution by measuring surface carbon dioxide fluxes by Ben‐Asher, J., Ephrath, J. E., Cardon, G. E., Phene, C. J., Peters, D., Rolston, D. E., Biggar, J. W.

“…Methods for determining root characteristics and distributions are time consuming and tedious. Indirect approaches could decrease the effort required to obtain…”
Get full text

Effect of naturally occurring soluble organic matter on the adsorption and movement of simazine [2-chloro-4,6-bis(ethylamino)-s-triazine] in Hanford sandy loam by Spurlock, Frank C., Biggar, James W.

“…The effect of soluble soil organic matter (SOM) on the adsorption of simazine in Hanford sandy loam was studied in batch, miscible displacement, and solubility…”
Get full text

Determining almond root zone from surface carbon dioxide fluxes by Ben-Asher, J, Cardon, G, Peters, D, Rolston, D.E, Phene, C.J, Biggar, J.W, Hutmacher, R.B

“…Size and distribution of roots in the soil is affected by irrigation method and water quantity and quality. The number of replications required to characterize…”
Get full text

Canopy temperature as a measure of salinity stress on sorghum by Kluitenberg, G.J. (Kansas State Univ., Manhattan (USA). Dept. of Agronomy), Biggar, J.W

Get full text

Simple field methods for estimating soil hydraulic conductivity by Libardi, P.L, Reichardt, K, Nielsen, D.R, Biggar, J.W

“…Soil water content profiles monitored as a function of time following steady‐state infiltration conditions in a field soil provide the only data necessary to…”
Get full text

Statistical analysis of sorghum yield: a stochastic approach by Morkoc, F, Biggar, J.W, Millar, R.J, Nielsen, D.R

“…The spatial variability of the yield of a sorghum (Sorghum vulgare Pers.) crop irrigated by a two line source sprinkler system is analyzed. This system, with…”
Get full text

Multivariate statistical analysis of potassium and chloride redistribution from a line-source sprinkler experiment by Tillotson, W.R, Biggar, J.W, Shumway, R.H, Nielsen, D.R

“…Water treatment effects on K and Cl redistribution in a field soil were quantified using a particular multivariate analysis of variance method, profile…”
Get full text

Kriging with generalized covariances by Morkoc, F., Biggar, J. W., Nielsen, D. R., Myers, D. E.

“…Electrical conductivities (EC) of saturated paste extracts of 225 soil samples collected from depths of 30 to 60 cm along five transects were determined. The…”
Get full text

Transport of salts by water by J Biggar, D Rolston, D Nielsen

“…Not available – first paragraph follows: The huge trough known as the Central Valley of California is enclosed on the east by the gently rising slopes of the…”
Get full text

River Quality Modeling: Frequency Domain Approach by Morkoc, F, Biggar, J. W, Shumway, R. H, Nielsen, D. R

“…Complete and equally spaced river quality variables specific conductance (SPC, μScm-1), total dissolved solids (TDS, mgL-1), and the logarithm of the daily…”
Get full text

Chloride‐36 Diffusion during Stable and Unstable Flow through Glass Beads by Biggar, J. W., Nielsen, D. R.

“…The effect of the properties of solution on the mixing occurring in porous material has been examined in glass beads using Cl36. Matched NaCl solutions of…”
Get full text